(a)What is transformation of energy ?Explain with any two suitable examples?
(b)What must be the velocity of a moving body of mass 2kg so that its K.E. is 25kg
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(A) the process of transition of one form of energy into another form is known as the transformation of energy.
1.In a torch
The chemical energy of the cell to Electrical energy to light & heat energy.
2)In a microphone the sound energy changes to Electrical energy and then again to Sound energy.
(B) KE = 1/2 m * v^2.
25 = 1/2 * 2 * v^2.
v^2 = 25
velocity v = 5 m/s.
1.In a torch
The chemical energy of the cell to Electrical energy to light & heat energy.
2)In a microphone the sound energy changes to Electrical energy and then again to Sound energy.
(B) KE = 1/2 m * v^2.
25 = 1/2 * 2 * v^2.
v^2 = 25
velocity v = 5 m/s.
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